NSA slides explain the PRISM data-collection program — Through a Top-Secret program authorized by federal judges working under the Foreign Intelligence Surveillance Act (FISA), the U.S. intelligence community can gain access to the servers of nine internet companies for a wide range of digital data.

President Obama's Dragnet — Within hours of the disclosure that the federal authorities routinely collect data on phone calls Americans make, regardless of whether they have any bearing on a counterterrorism investigation, the Obama administration issued the same platitude it has offered every …

Anti-Surveillance Activist Is at Center of New Leak — After writing intensely, even obsessively, for years about government surveillance and the prosecution of journalists, Glenn Greenwald has suddenly put himself directly at the intersection of those two issues, and perhaps in the cross hairs of federal prosecutors.

Google Wallet Is Leaking Money — Google Wallet (GOOG), the mobile software that allows Android users to pay for purchases online and in stores with their phones, has become a money pit. The company has dedicated hundreds of developers to Wallet and spent about $300 million to acquire digital payment startups to help develop the app.

Windows 8.1 Start button demonstrated fully in new video — Microsoft demonstrated a number of new features in Windows 8.1 earlier this week, but the company briefly showed the return of the Start button and avoided any details on how it visually works. During Computex this week the company took …